🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 843.7

Radius: 8.8

Gravity: 10.89 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.76 AU - 0.9 AU

Year: 488 Days

Day: 8.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 70,255,171 km

• M1: 109,805 km (0.067 R)
• M2: 386,860 km (0.06 R)
• M3: 696,677 km (0.117 R)
• M4: 1,126,472 km (0.032 R)
• M5: 1,427,313 km (0.112 R)
• M6: 2,177,397 km (0.077 R)
• M7: 2,704,730 km (0.092 R)
• M8: 2,993,154 km (0.115 R)
• M9: 3,414,272 km (0.087 R)
• M10: 3,847,059 km (0.097 R)
• M11: 5,033,220 km (0.112 R)
• M12: 5,719,426 km (0.104 R)
• M13: 6,544,608 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.7

Radius: 8.3

Gravity: 12.06 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.88 AU - 1.06 AU

Year: 617 Days

Day: 13.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 70,255,171 km

• M1: 103,223 km (0.106 R)
• M2: 378,632 km (0.114 R)
• M3: 725,101 km (0.068 R)
• M4: 996,322 km (0.118 R)
• M5: 1,479,074 km (0.112 R)
• M6: 1,737,430 km (0.092 R)
• M7: 2,017,028 km (0.09 R)
• M8: 2,326,845 km (0.085 R)
• M9: 3,043,120 km (0.062 R)
• M10: 3,533,651 km (0.108 R)
• M11: 4,656,084 km (0.052 R)
• M12: 6,357,461 km (0.118 R)
• M13: 6,687,324 km (0.12 R)
• M14: 7,072,090 km (0.098 R)
• M15: 7,562,172 km (0.059 R)
• M16: 7,979,999 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.4

Radius: 10.1

Gravity: 8.91 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.53 AU - 1.61 AU

Year: 1270 Days

Day: 9.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 70,255,171 km

• M1: 125,662 km (0.058 R)
• M2: 496,067 km (0.097 R)
• M3: 1,272,031 km (0.084 R)
• M4: 2,248,456 km (0.114 R)
• M5: 2,903,246 km (0.119 R)
• M6: 3,344,859 km (0.119 R)
• M7: 4,127,106 km (0.04 R)
• M8: 5,982,718 km (0.117 R)
• M9: 7,055,634 km (0.062 R)
• M10: 7,638,018 km (0.052 R)
• M11: 9,080,890 km (0.08 R)
• M12: 9,547,187 km (0.09 R)
• M13: 10,393,462 km (0.083 R)
• M14: 11,466,677 km (0.115 R)
• M15: 11,938,209 km (0.099 R)
• M16: 12,460,306 km (0.1 R)
• M17: 13,232,680 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.8

Radius: 12

Gravity: 6.55 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2.28 AU - 3.78 AU

Year: 3405 Days

Day: 8.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 70,255,171 km

• M1: 151,243 km (0.105 R)
• M2: 1,165,367 km (0.045 R)
• M3: 1,730,399 km (0.079 R)
• M4: 2,520,724 km (0.105 R)
• M5: 2,919,851 km (0.107 R)
• M6: 3,721,696 km (0.059 R)
• M7: 5,431,749 km (0.07 R)
• M8: 6,133,363 km (0.103 R)
• M9: 7,413,921 km (0.097 R)
• M10: 8,827,920 km (0.085 R)
• M11: 10,882,048 km (0.082 R)
• M12: 12,992,425 km (0.045 R)
• M13: 13,485,051 km (0.106 R)
• M14: 14,984,620 km (0.078 R)
• M15: 15,581,665 km (0.098 R)
• M16: 16,421,209 km (0.091 R)
• M17: 16,881,073 km (0.072 R)
• M18: 18,007,993 km (0.055 R)
• M19: 18,683,128 km (0.115 R)
• M20: 19,311,290 km (0.102 R)
• M21: 20,477,555 km (0.105 R)
• M22: 22,454,491 km (0.057 R)
• M23: 23,453,057 km (0.079 R)
• M24: 24,332,393 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 516.2

Radius: 11.1

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 3.53 AU - 3.91 AU

Year: 4633 Days

Day: 6.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 70,255,171 km

• M1: 138,079 km (0.118 R)
• M2: 497,114 km (0.12 R)
• M3: 882,328 km (0.095 R)
• M4: 1,270,984 km (0.106 R)
• M5: 2,276,281 km (0.099 R)
• M6: 2,783,717 km (0.081 R)
• M7: 3,563,720 km (0.117 R)
• M8: 4,049,465 km (0.093 R)
• M9: 4,554,956 km (0.093 R)
• M10: 5,833,719 km (0.078 R)
• M11: 6,239,727 km (0.083 R)
• M12: 6,852,480 km (0.117 R)
• M13: 7,206,429 km (0.119 R)
• M14: 7,777,444 km (0.052 R)
• M15: 8,671,889 km (0.083 R)
• M16: 9,915,048 km (0.111 R)
• M17: 11,141,152 km (0.102 R)
• M18: 12,608,408 km (0.1 R)
• M19: 13,141,425 km (0.116 R)
• M20: 15,755,947 km (0.082 R)
• M21: 16,776,653 km (0.099 R)
• M22: 18,699,285 km (0.119 R)
• M23: 20,564,770 km (0.096 R)
• M24: 21,921,623 km (0.116 R)
• M25: 24,067,455 km (0.096 R)
• M26: 24,963,845 km (0.066 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 346.3

Radius: 6.6

Gravity: 7.95 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 5.4 AU - 8.12 AU

Year: 11348 Days

Day: 19.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,255,171 km

• M1: 82,129 km (0.108 R)
• M2: 340,335 km (0.104 R)
• M3: 836,402 km (0.106 R)
• M4: 1,072,467 km (0.118 R)
• M5: 1,492,239 km (0.11 R)
• M6: 1,890,468 km (0.027 R)
• M7: 2,485,269 km (0.094 R)
• M8: 2,960,691 km (0.106 R)
• M9: 3,220,244 km (0.072 R)
• M10: 4,332,055 km (0.112 R)
• M11: 5,233,831 km (0.095 R)
• M12: 7,402,551 km (0.075 R)
• M13: 7,841,621 km (0.101 R)
• M14: 9,446,956 km (0.039 R)
• M15: 14,364,687 km (0.12 R)
• M16: 15,882,357 km (0.059 R)
• M17: 20,215,609 km (0.116 R)
• M18: 20,447,037 km (0.069 R)
• M19: 27,763,420 km (0.096 R)
• M20: 31,429,914 km (0.045 R)
• M21: 33,325,020 km (0.108 R)
• M22: 33,540,142 km (0.106 R)
• M23: 34,519,858 km (0.03 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 40.1

Radius: 7.6

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 5.49 AU - 8.53 AU

Year: 11984 Days

Day: 22.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,255,171 km

• M1: 94,546 km (0.039 R)
• M2: 425,008 km (0.07 R)
• M3: 1,045,540 km (0.075 R)
• M4: 1,442,423 km (0.085 R)
• M5: 2,614,522 km (0.084 R)
• M6: 4,475,519 km (0.092 R)
• M7: 4,839,192 km (0.064 R)
• M8: 6,931,767 km (0.099 R)
• M9: 7,264,473 km (0.07 R)
• M10: 8,530,819 km (0.087 R)
• M11: 9,019,405 km (0.113 R)
• M12: 9,824,840 km (0.075 R)
• M13: 10,167,718 km (0.083 R)
• M14: 12,264,183 km (0.097 R)
• M15: 13,022,794 km (0.064 R)
• M16: 14,781,317 km (0.086 R)
• M17: 18,937,594 km (0.092 R)
• M18: 20,998,006 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 238.4

Radius: 6.4

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 6.6 AU - 10.1 AU

Year: 15579 Days

Day: 23.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 70,255,171 km

• M1: 79,586 km (0.105 R)
• M2: 313,856 km (0.044 R)
• M3: 554,709 km (0.086 R)
• M4: 1,288,636 km (0.107 R)
• M5: 5,019,607 km (0.088 R)
• M6: 6,114,963 km (0.096 R)
• M7: 10,859,459 km (0.048 R)
• M8: 11,069,494 km (0.101 R)
• M9: 15,660,503 km (0.057 R)
• M10: 19,237,987 km (0.11 R)
• M11: 35,646,330 km (0.109 R)
• M12: 36,227,368 km (0.044 R)
• M13: 36,814,839 km (0.078 R)
• M14: 39,105,183 km (0.04 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 400.6

Radius: 6.9

Gravity: 8.41 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 8.84 AU - 12.94 AU

Year: 23204 Days

Day: 17 Hours

Environment

Temp: -236 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 70,255,171 km

• M1: 85,869 km (0.064 R)
• M2: 342,130 km (0.026 R)
• M3: 681,568 km (0.102 R)
• M4: 996,471 km (0.103 R)
• M5: 1,362,238 km (0.103 R)
• M6: 1,693,149 km (0.056 R)
• M7: 2,385,188 km (0.111 R)
• M8: 3,017,688 km (0.115 R)
• M9: 3,414,571 km (0.096 R)
• M10: 4,121,421 km (0.045 R)
• M11: 4,443,206 km (0.078 R)
• M12: 6,395,159 km (0.091 R)
• M13: 7,140,905 km (0.079 R)
• M14: 8,190,483 km (0.092 R)
• M15: 9,895,301 km (0.106 R)
• M16: 11,507,367 km (0.104 R)
• M17: 12,541,238 km (0.117 R)
• M18: 13,286,984 km (0.117 R)
• M19: 15,624,450 km (0.086 R)
• M20: 18,827,341 km (0.088 R)
• M21: 22,344,536 km (0.113 R)
• M22: 25,306,425 km (0.094 R)
• M23: 27,607,838 km (0.045 R)
• M24: 31,747,511 km (0.104 R)
• M25: 38,492,579 km (0.037 R)
• M26: 42,875,049 km (0.065 R)
• M27: 50,560,191 km (0.096 R)
• M28: 51,239,215 km (0.098 R)
• M29: 56,709,262 km (0.032 R)
• M30: 60,627,978 km (0.059 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 468 - 15,145 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit